package com.gm.baseplatform.core.utils;

public class StringUtil {

	public static boolean isNull(String s) {
		return s == null;
	}
	
	public static boolean isNotNull(String s) {
		return s != null;
	}
	
	public static boolean isEmpty(String s) {
		return s == null || s.equals("") || s.length() == 0;
	}
	
	public static boolean isNotEmpty(String s) {
		return s != null && !s.equals("") && s.length() != 0;
	}
}
